Finding the Fourth Proportional to 420,549.11, 580,337.60 and 239,244.08
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Solution
The fourth proportional to 420,549.11, 580,337.60 and 239,244.08 is: 330,145.35
Step by Step Solution
- Step 1: Write the proportion equation
420,549.11 : 580,337.60 = 239,244.08 : x - Step 2: Convert to fraction form
420,549.11/580,337.60 = 239,244.08/x - Step 3: Cross multiply
420,549.11x = 580,337.60 × 239,244.08 - Step 4: Simplify right side
420,549.11x = 138,842,331,103.50 - Step 5: Solve for x
x = 138,842,331,103.50/420,549.11 - Step 6: Final answer
x = 330,145.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.